45449938 has 16 divisors (see below), whose sum is σ = 73120320. Its totient is φ = 21121776.

The previous prime is 45449933. The next prime is 45449939. The reversal of 45449938 is 83994454.

It is not an unprimeable number, because it can be changed into a prime (45449933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9270 + ... + 13297.

It is an arithmetic number, because the mean of its divisors is an integer number (4570020).

Almost surely, 2^45449938 is an apocalyptic number.

45449938 is a deficient number, since it is larger than the sum of its proper divisors (27670382).

45449938 is a wasteful number, since it uses less digits than its factorization.

45449938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22641.

The product of its digits is 622080, while the sum is 46.

The square root of 45449938 is about 6741.6569179987. The cubic root of 45449938 is about 356.8708689840.

The spelling of 45449938 in words is "forty-five million, four hundred forty-nine thousand, nine hundred thirty-eight".